If you are a serious overclocker or a power user looking to maximize the potential of your new Sandy Bridge-E processor, then the ASUS Republic of Gamers Rampage IV Extreme (X79) is the definitive choice for you when it hits the shelves. We put the board together with the debuting Core i7-3960X Extreme Edition CPU through the tests and overclocked it on air cooling to see how much millege the typical intermediate user might get. Later this month, we will also attempt high-end liquid and LN2 cooling with this setup.